I was charged the wrong amount.

On iPhone:

If you've made an in-app purchase using your Apple ID and have noticed duplicate or incorrect charges on your bank statement, please verify this information with your bank and contact Apple Support to report this issue. Apple handles all transactions directly, including refunds.

On Android:

If you've made an in-app purchase using your Google Play Store account and have noticed duplicate or incorrect charges on your bank statement, please verify this information with your bank and contact Google Play Support to report this issue.

On Tinder for web (Tinder Online):

If you’ve made an in-app purchase on Tinder.com and have noticed duplicate or incorrect charges on your bank statement, please contact us and we will investigate.